Statements: No A is B. Some B are C. All C are D. Conclusions:

Question

Statements: No A is B. Some B are C. All C are D. Conclusions:

I. Some A are D is a possibility.

II. All A are C.

1. A. Only conclusion II follows
2. B. Both conclusions I and II follow
3. C. Either I or II conclusion follows
4. D. Only conclusion I follows (Correct answer)

Correct Answer

Option D — Only conclusion I follows

Detailed Solution & Explanation

The correct answer is Only conclusion I follows.

Key Points

• No A is B; Some B are C; All C are D. Conclusion I (Some A are D is a possibility): Since no A is B, A has no direct link to D through B→C→D, but it remains a possibility.
• Conclusion II (All A are C): cannot follow as there is no path from A to C. Only Conclusion I follows.

प्रश्न (हिन्दी में)

कथन: कोई A, B नहीं है। कुछ B, C हैं। सभी C, D हैं। निष्कर्ष: I. कुछ A, D हैं, यह संभावना है। II. सभी A, C हैं।

1. A. केवल निष्कर्ष II
2. B. दोनों निष्कर्ष I और II
3. C. या तो I या II
4. D. केवल निष्कर्ष I